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WARNING
Hazardous Voltage!
Disconnect all electric power,
including remote disconnects before
servicing. Follow proper lockout/
tagout procedures to ensure the
power can not be inadvertently
energized. Failure to disconnect
power before servicing could result
in death or serious injury.
CAUTION
Sharp edges
Protect hands and belt from sharp
edges around hole in bearing
support beam. Failure to do so may
result in minor or moderate injury.
Bearing/Drive Belt
Replacement
For sizes 10 to 50
Bearing removal on the pulley side of
the wheel is required to remove and
replace the drive belt for unit sizes 10
to 50. Bearing removal is discussed
first in this procedure.
1. Disconnect all electrical power.
2. Obtain access to the pulley side
bearing access plate.
3. Remove the two bearing access
plate retaining screws and the
access plate.
4. Using a hexagonal wrench,
loosen the set screw in the
bearing locking collar.
5. Using a light hammer and a drift
placed in the drift pin hole in the
collar, tap the collar in the
opposite direction of wheel
rotation to unlock it.
6. Remove the collar.
7. Using a socket wrench with an
extension, remove the two nuts
16
Service
and Repair
that secure the bearing housing
to the bearing support beam.
8. Slide the bearing from the shaft.
Note that slight hand pressure
against the wheel rim will lift the
weight of wheel from the inner
race of the bearing to assist in its
removal and installation. The use
of a bearing puller may be
required.
9. Using a wrench, remove the
diameter seal retaining screws or
hub seal retaining screws and
remove the diameter seals or hub
seals from the bearing beam. See
Figure 16 for an exploded view of
the shaft, bearings, belt, etc.
10. Remove the old beltForm a small
loop of belt and pass it through
the hole in the bearing support
beam.
11. Grasp the belt at the wheel hub
and pull the entire belt down..
Figure 16. For belt replacement, loop the trailing end of the belt over the shaft
(shown with diameter seals removed)
12.
13. Loop the trailing end of the belt
over the shaft. Figure 16 shows
the belt partially through the
opening.
14. Re-install the bearing onto the
wheel shaft, being careful to
engage the two locating pins into
the holes in the bearing support
beam.
15. Secure the bearing with two self-
locking nuts.
16. Install the belt around the wheel
and pulley according to the
instructions provided with the
belt.
17. Re-install the diameter seals or
hub seal and tighten the retaining
screws.
CLCH-SVX02C-EN
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